Preparation method of biological type coating material for slow release fertilizer

A coating material and slow-release fertilizer technology, applied in organic fertilizers, layered/coated fertilizers, fertilization devices, etc., can solve the problems of expensive coating materials, expensive coated fertilizers, and obstacles to the promotion and application of slow-release fertilizers , achieve the effect of cost saving and simple method

A coating material and slow-release fertilizer technology, applied in organic fertilizers, layered/coated fertilizers, fertilization devices, etc., can solve the problems of expensive coating materials, expensive coated fertilizers, and obstacles to the promotion and application of slow-release fertilizers , achieve the effect of cost saving and simple method

CN106748237AInactive Publication Date: 2017-05-31新昌县迪斯曼科技有限公司
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A biological slow-release fertilizer coating material, composed of the following raw materials by weight: beef extract peptone 38%, glucose 37%, polyquaternium-10 6%, potassium hydrogen phosphate 4%, sodium chloride 6%, Yeast powder 9%, water.

[0023] The production method is as follows:

[0024] (1) Prepare the fermentation medium. The ingredients of the fermentation medium are: beef extract peptone, glucose, polyquaternium-10, potassium hydrogen phosphate, sodium chloride, yeast powder, water, and the pH value is 7.0; take jelly Bacillus-like bacteria were inoculated into the fermentation medium, the temperature was controlled at 28-32°C, and cultured for 1-2 days;

[0025] (2) Filter the culture medium after the fermentation in step (1), add 1.5 times the volume of pre-cooled absolute ethanol to the filtrate, stir at a slow speed for 30 minutes, and then centrifuge at a speed of 6000-8000r / min for 20 ~ 30 minutes, take the precipitate and wash it with ethanol; aft...

Embodiment 2

[0028] A biological slow-release fertilizer coating material, composed of the following raw materials by weight: beef extract peptone 39%, glucose 34%, polyquaternium-10 7%, potassium hydrogen phosphate 6%, sodium chloride 5%, Yeast powder 9%, water.

[0029] The production method is as follows:

[0030] (1) Prepare the fermentation medium. The ingredients of the fermentation medium are: beef extract peptone, glucose, polyquaternium-10, potassium hydrogen phosphate, sodium chloride, yeast powder, water, and the pH value is 7.0; take jelly Bacillus-like bacteria were inoculated into the fermentation medium, the temperature was controlled at 28-32°C, and cultured for 1-2 days;

[0031] (2) Filter the culture medium after the fermentation in step (1), add 1.5 times the volume of pre-cooled absolute ethanol to the filtrate, stir at a slow speed for 30 minutes, and then centrifuge at a speed of 6000-8000r / min for 20 ~ 30 minutes, take the precipitate and wash it with ethanol; aft...

Embodiment 3

[0034] A biological slow-release fertilizer coating material, composed of the following raw materials by weight: beef extract peptone 37%, glucose 31%, polyquaternium-10 9%, potassium hydrogen phosphate 7%, sodium chloride 6%, Yeast powder 10%, water.

[0035] The production method is as follows:

[0036] (1) Prepare the fermentation medium. The ingredients of the fermentation medium are: beef extract peptone, glucose, polyquaternium-10, potassium hydrogen phosphate, sodium chloride, yeast powder, water, and the pH value is 7.0; take jelly Bacillus-like bacteria were inoculated into the fermentation medium, the temperature was controlled at 28-32°C, and cultured for 1-2 days;

[0037] (2) Filter the culture medium after the fermentation in step (1), add 1.5 times the volume of pre-cooled absolute ethanol to the filtrate, stir at a slow speed for 30 minutes, and then centrifuge at a speed of 6000-8000r / min for 20 ~ 30 minutes, take the precipitate and wash it with ethanol; af...

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Abstract

The invention provides a biological type coating material for a slow release fertilizer. The material comprises the following raw materials: beef extract-peptone, glucose, Polyquaternium-10, potassium hydrogen phosphate, sodium chloride, yeast powder, and water. The product is prepared by the following steps: preparation of a fermentation medium, production of a refined biological coating agent, drying, and the like; the material has the advantage of simple processing technology, and is suitable for large area promotion.

Description

technical field [0001] The invention relates to the field of preparation of slow-release fertilizer coating materials, in particular to a preparation method of biological slow-release fertilizer coating materials. Background technique [0002] Slow release fertilizers are also called slow available fertilizers or control release fertilizers. The nutrient-containing compounds in the fertilizer are released slowly in the soil or the nutrient release rate can be controlled to a certain extent for the continuous absorption and utilization of crops. [0003] Long-term field experiments and research results show that, under normal circumstances, after nitrogen fertilizer is applied to the soil, only 30-50% can be absorbed and utilized by crops, while the rest is lost in vain. The loss of nitrogen fertilizer is due to the volatilization of ammonia. Leaching, nitrification and denitrification. The purpose of developing and applying slow-release nitrogen fertilizer is to reduce th...

Claims

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Application Information

Patent Timeline
31 May 2017
Publication
CN106748237A
IPC
C05G3/00; C05F11/08; C12N1/16
CPC
C05D9/02; C05F11/08; C05G5/30; C12N1/16
Inventors
蒋玉明; 胡光琼